| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Spectral-Phase-Modulated Cross-Polarized Wave for Chirped Pulse Amplifier with High Contrast Ratio |
| Shuang Qin1, Zhao-Hua Wang1**, Shuai-Shuai Yang2, Zhong-Wei Shen1, Quan-Li Dong2, Zhi-Yi Wei1** |
1Beijing National Laboratory for Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences, Beijing 100190
2School of Physics and Optoelectronic Engineering, Ludong University, Yantai 264025
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| Cite this article: |
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Shuang Qin, Zhao-Hua Wang, Shuai-Shuai Yang et al 2017 Chin. Phys. Lett. 34 024205 |
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Abstract We demonstrate a high-quality cross-polarized-wave filter based on spectral phase modulation. Driven by well-compressed spectral-phase fully-compensated fundamental laser pulses, the filter stretches the pulse bandwidth from 35 nm to 70 nm with a conversion efficiency of 20%. After implementing the filter into a femtosecond TW Ti:sapphire laser system, we generate 40 mJ output pulse energy with pulse duration of 18.9 fs. The temporal contrast of the compressed pulse is enhanced to 10$^{9}$.
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Received: 17 November 2016
Published: 25 January 2017
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| PACS: |
42.60.-v
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(Laser optical systems: design and operation)
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42.65.-k
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(Nonlinear optics)
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42.65.Re
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(Ultrafast processes; optical pulse generation and pulse compression)
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87.57.cj
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(Contrast)
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| Fund: Supported by the National Key Basic Research Program of China under Grant No 2013CB922402, the National Natural Science Foundation of China under Grant Nos 61575217 and 11434016, the Key Research Program of Frontier Sciences of Chinese Academy of Sciences under Grant Nos KJZD-EW-L11-03 and QYZDJ-SSW-JSC006, and the Strategic Priority Research Program of Chinese Academy of Sciences under Grant No XDB16030200. |
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